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    Wyświetlanie 1-2 z 2
    Tytuł:
    O naukowych i filozoficznych implikacjach problemu brakującej masy
    On the Scientific and Philosophical Implications of the Missing Mass Problem
    Autorzy:
    Pabjan, Tadeusz
    Powiązania:
    https://bibliotekanauki.pl/articles/690664.pdf
    Data publikacji:
    2014
    Wydawca:
    Copernicus Center Press
    Tematy:
    Missing Mass Problem
    dark matter
    dark energy
    cosmology
    philosophy of physics
    Opis:
    The article deals with the so called missing mass problem which during the last three decades has become one of the most serious difficulties in physics. There is some strong empirical evidence that the Universe contains not only matter that can be seen (by telescopes or radio telescopes) but the huge quantities of the unseen matter as well. The ordinary matter known to physics is but a small part of all matter the Universe is composed of. The missing mass is supposed to be in the form of the dark matter and the dark energy. In the paper the arguments in favor of the existence of these two entities are outlined, and some scientific as well as philosophical implications of the missing mass problem are discussed. It is argued that all the proposed solutions of this problem lead to serious changes in the scientific and philosophical worldview.
    Źródło:
    Zagadnienia Filozoficzne w Nauce; 2014, 54; 5-37
    0867-8286
    2451-0602
    Pojawia się w:
    Zagadnienia Filozoficzne w Nauce
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Granice fizyki w kosmologii
    Limits of physics in cosmology
    Autorzy:
    Sokołowski, Leszek M.
    Powiązania:
    https://bibliotekanauki.pl/articles/690790.pdf
    Data publikacji:
    2015
    Wydawca:
    Copernicus Center Press
    Tematy:
    physical cosmology
    the notion of the Universe
    dark matter and dark energy
    falsifiability of quantum gravity
    origin of the Universe
    Opis:
    The message is that physics has an „outward bound” of scientific inquiry in the field of cosmology. I present it in the historical development. Physics and astronomy, developing since the seventeenth century, inherited from the early Greek philosophers the conception that the Universe as a whole is invariable. In nineteenth century this conception in conjunction with the conception of eternity of the Universe (being a philosophical conclusion from the conservation laws of mass and energy) gave rise to contradictions with other laws of physics indicating that cosmology is not a branch of physics since the notion of the Universe is not a physical one. Cosmology returned to physics as its important branch due to the advent of general relativity theory and the discovery of the cosmic microwave background radiation. Modern cosmology generates fundamental problems creating real limits to inquiries in physics viewed as an empirical science. The very notion of the Universe shows that the scientific method reaches there limits of its applicability. Does „to exist” mean „to be observed by someone”? Should the definition of the Universe be based on a current physical theory, e.g. on Einstein’s general relativity, giving rise to a kind of mathematical instability? Is the fashionable concept of the „multiverse” a physical one or is a purely metaphysical notion in a scientific disguise? If the Universe is unique (as we believe), is it meaningful to describe it in the framework of physics, which by its method always assumes that the number of objects it describes, is unlimited? Apart from these permanent philosophical problems there are concrete urgent problems generated by cosmology: the nature of dark matter and dark energy. These two species of „substance” appear only in cosmology and do not fit the laboratory physics; contrary to the three centuries long tradition of modern science, now cosmology inspires physics in a troublesome way. A separate class of limits to physics is generated by the theorem in general relativity that the Universe emerged from an initial curvature singularity of the spacetime. At the singularity the whole scientific inquiry breaks down. Cosmology of the very early Universe suggests that in its evolution two specific epochs took place, that of quantum gravity and an inflationary epoch. The underlying them two physical theories are incomplete and seem to be inherently untestable. Furthermore, the experimentally verifiable physics cannot explain the origin of the initial conditions determining properties of the Universe which emerged from the singularity.
    Źródło:
    Zagadnienia Filozoficzne w Nauce; 2015, 59; 25-81
    0867-8286
    2451-0602
    Pojawia się w:
    Zagadnienia Filozoficzne w Nauce
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-2 z 2

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